Steam-boiler attachment



2 vi Hm m. S m L (No Model.)

STEAM BOILER ATTACHMENT.

N0 409,617. Pamnted 2Q, 1889.

fillilll', Ol PlllLADELPlilA, PEN ?fllfllviililili.

i lhihi il tifil LEE- 1 ATTACH lllil'l".

SlEEfiIFICATIGN forming part of Letters Fatent No. 409,617, dated August 26, 1889.

Application filed November 5, 1888. Serial 110,289,993. {No model.)

To (11H whom it 71mg concern:

Be it lznovvn that l, LEVI F. SMITH, of Philadelphia, in the county of Philadch hia and State of leimsylvania, have invented certain new and usefulImprovements in Steain-lfioilcr Attachments; and .l do hereby' declare that the following l'ull, clear, and exact do scription thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which fern: part oi": this specification, in whieh- Figure 1 is a side vicwof lily-improved water column and indicator for steam-boilers. Fig. is a central vertical section through the Fig. 3 is a detail sectional view of one of the, glass gage-valves. Fig. -.l-

:1 sectional detail of the float loclzinga'od.

My invent-ion. is an improved attaclnnent for steanrbriilcrs; and its objects are to gage the height oi" W21 tor and to automatically sound an ulurnrlo indicate low or high Water; and the invenlion consists in the novel con- 1-1l r 1c2ion and arrangement oi 1)2ll'lf $,lll0lllafter described, illustrated in the drawings, and particularly specified in the claims heroic appended.

Referring to the drawh1g1; by letter, A d05ighates a cylinder c1 tituting.-1-ivai'eucoluinn, irovil'led at bottom with a draincoclc r/, and at i011 with a cap having a holloii' llpSllllldinc; StC-lll A". i

l; is an El-shaped pipe-joint, screwllireadod at its extremities and engagml by one end in a threaded opening 7) near the top of column A, and ll is a similar jointencaging an opening 7.) near the bottom of the column. line or both of these joints may be provided with a union l3". By these unioh joints the cylinderA is connected with [he boiler in a perpeiv diculur position, and as the joints can he swung from or toward each other i can attach the column to different boilers,whether the openinco in the boilcr- 1 ilnte for ihc kUlllliU lions ol' the gage or column be close or far apart, as indicated in lig. 2, and can also move the column up or down, right or left, on

those swinging tT -joinls, so thatit can be properly adjusted to the desired level of the r" water in the boiler. ihese S-joints could be employed to attach an ordinunv Water-gage to the boiler, and can be readily adjusted to suit gages of different lengths.

i) represents a float moving in cylinder A, and to which is connected 1 vertical rod 0,

-t-hat play, and is guided in the hollow stein 7 A.

Rod 1;: preferably connected with the lloat by providing the latter with a screwthreaded socket t1, and havin the engaging end of the rod ti: reailcd and clinically shouldcrccl, so that when it isengaged with socket U it Will form a tight-joint therewith. By having such a joint should there be any leakage of water into the float, the rod can be unscrewed and the water poured out, The screw-joint may be wiped with soldier to insure its lightnciss and prevent unscrewing of the rod, which, however, can be readily removed by first h cat ing the SOClJOl.

D is a lateral valve-casingscrewed inio an opening near the upper end of cylinder A, This valve inns an annular partition (I in its interior which is constructed at its front end and extends forward in the form of a conical tube 1/, in the end ol' which is formed a eonical vi'ilve-rseat l). iibovc and in frontot' pan tilion d is an opcningl), in which is engaged the Still elf an ordinary whistle W.

in a conical valve fitting scat l), and

having a forwardlpprojecting pin E, which extends beyond the cone 11111111 screwthrcaded. for the engagement of a nut 1C.

1 a a coiled spring placed on. cone 1! ex lerior 11 valve-M0111 E, and bearing agaiiilst '11 111; .15, so that it servea to hold the valvestcin up in place and insures its proper return ul'icr beingopened.

e is a rearwardly-exiendiug portion of stem E, having an e ve1."',by which it io looscly e11- qaged with a linhf on the end of a valve- :llQill l which has a cylindrical valve 1 hearing against the lhe partition1?,and an inwanlly-exlendi11g portion. f, which has a ring F on its inner end, through which rod 0 plays freely in its inm'einents up and doivn.

G: i. are Stops adjustably secured on rod 0, respcclivelv above and below ring 1, and which are adapted to engage the ring when the iloat riecs to high-water marl; or falls to low-Water mark. The spring 0 drawing the valve-stein forward, causes it to assume and keep horizontal position, as shown in full s lines 53; but when either stop G or G'en-- douolevalvei. 2., a rock valve and conea loop or bend over 6o nally and externally threaded.

seatedvalve-between the column and signal whistle, thereby guarding against wear or lealiage ot steam to the signal, and utilize the rock-valve to operate the cone-vahre.

In order to permit the whistle to be used as a call and to operate the valves to keep them in working order, l. employ the device shown in section, 2, consisting of a centrally perforated screw-cap g, fitted, into the outer end. oi the casing l), and g is a short stein projecting through the cap, having its inner end enlarged and. its outer end threaded. g a spring on the outer endot' said stein, bearing against cap and retained by a n ut. on the sten1,the sprii'ig l-(eiiping the stem projected by pushing stein g inward. its head the pin l5 and forces the latter eachword, unseating valves it) and l. and permitting the escape of steam to the whistle. (JasingD may be fitted with an exterior jam-nut l) to secure itvin position.

It is soinctin'les desirable where the boiler or check-valve leaks to pump the water above high-Water marl; when leaving at night, and in order to prevent the valves being opened by the float rising, employ rod. ll, journaled transversely in the cylinder and having stem 1, and one end passes through a suitably-smiled box in Me side of cylinder A, and is provided with crank-arm which may be weighted. vl hcn the loop turned down, as indicated in dotted lines, the stem and float are prevented from rising andthe valves opening, as is evident. v

72. h it are try-cocltson cylinder A, respect ively for high, medium, and low water.

I designates a \l'l.t6l-tl 'd aitachciil to cylinder A and composed of two valves 1, between which mounted a vertical glass tube 1 in the usual manner. Each valve 1 is con-- structed with tubular threaded portion 2', engaging the threaded opening in the cylinder, and in which is i'ornicd a double conical valve-seat i. In front of the valve-seat is a chamber J, provided with an openingforcominunicating with the end of the tube, and in front ofthis chamber is a cylindrical forwardly-extol ding portion j, which is inter- J is a threaded valve-stem passingthrougl portion and engaging the threaded ends thereofl-ancl is a threaded cap on said stem and. engaging the external threads of portion j to keep a close joint therewith and prevent careless withdrawal of the valve-stein. The inner end of stem .l' made conical, as

shown, to engage the outer cone face of seat 2' when the valve is turner inward, so that water can be shut out when the glass is re "moved for cl w ning, 51:0.

K is a valve playing freely and loosely in the portion '1", and it has a conical front end, from which projects a stud is, that extends through seat '11 when the valve closed. Jalvc K is formed with a twist or screw portion K in rear of its. conical end, which will. cause the valve to revolve when acurrent is passing until it has seated itself, and thusthc valve will be seli-elcaning by preventing and breaking up any deposits that might collect in portion 'L'. g

In practice the valve-stems J are retracted, and the weight of valves K prevents the slight currents passing through the gage from seating them; but should the glass be broken a current of water or steam under the boiler= pressure would take place through cocks l snllicient to cause valves K to revolve, and also to seat them, thus automatically cutting oil the water and steam and preventingleakage until the glass is replaced. To replace the glass,valves J are screwed in, forcing back. valves K, but cutting ed the current, so that danger oi scalding the workmen is obviated. 'lhe projecting studs 1: 0t valves K, engaging stems J hold valves K. open-until after stems J have been disengaged from their seats, so that the tube will be filled with Water befor the valve K is entirely free to: ct. The inner rearward. 'l. he lower valve l is provided with a drain-cocl, as usual.

Having described my invention, 1 clain1- 1.' The combination of the water-cylinder and the float and its red therein, with the valvecasing attached to said column, having described.

3. The combination of the casing D, having an interior conical valve-seat and cone d',a spring-controlled valve E within cone d, with. the screw-cap having a spring-controlled stein g, adapted. to ul'lseat; valve E when pushed inward, substantially as dcscribed.

l. The combination of the casing l), having an annular partition (I and the cone (7 a conical valve-seat, a conical spring-cow end of portion 2" is provided with a stop lug I, or pin 1 to prevent the escape of valves K gagingthe float-rod stops, substantially as 'wif'h the eenleal. sipl-ing-centrelled valve E, engaging a, sent in come (1, and the rocking venleinia and its vnlve i seated a 'ainst 'i-itien d. and e11 ing and epei'atingvalve L, and the fleetiim'l ills 1-011foropernlingslzem F, all HUlJSlmll'll-lly as ileserilieil.

5 The combination of the Heat and its red provided will. Mops with the vnlve-ensingl), ha ing an annhlm pm'tifiinn (l'nnll cene (7', and the alarm'whistle on said easing. the eenewnh'e Tl'l, spring (2 reek-valve F, and in; elem; all substantially an described,

'lhe combination of the Walermylinder and il' jeinl' vennnaijfiiens,lhe lent therein, the rm. (lelnehahlywezuwafl 1e Silill lent and. Lhe :uljuntnble new; i'nei'ireng with the velvemsing D,ll21\'lllg"lll8PUllH-Yilh'fil), reekvzilve l engaging valve 1'1 relah-vnlve stem F, engaging rm] (7, and lhe nhu'm-wlxislle, all substantially as (h'asel'ibeih 7. The combinnlien ol' ihe \VzllOPt'fllIHlM',

the float and. the vel'liea-l rod. therein, and the rocking valve engaging said stem, with a red adapted to engage the stem and prevent its rising when the boiler is to be pumped fill of water, substantially as described. 7

8. The combination of the Water-05 1incler, the fleet and. rod therein, and the stops on said mil, with the valve-cnsingl), having an annular pnrtilion (l and cone (Z, the conical valve E,S1)Illl a therefor, rocking Valve 1 and ir-s elem, llIG WlIiShlB-QLRQ the sefew-eap g, and its puslrstenifl n1 substantially as de- SCl'ihQd. V

Inleeiimeny that I claim the foregoing as my own I affix my signamt'e in [)l'QF1G11CG if twe witnesses.

JEVI- F. SMITH.

Witnesses:

A. E. DUWELL, l". L. Ihmoks. 

